%%
%% %CopyrightBegin%
%%
%% Copyright Ericsson AB 1999-2010. All Rights Reserved.
%%
%% The contents of this file are subject to the Erlang Public License,
%% Version 1.1, (the "License"); you may not use this file except in
%% compliance with the License. You should have received a copy of the
%% Erlang Public License along with this software. If not, it can be
%% retrieved online at http://www.erlang.org/.
%%
%% Software distributed under the License is distributed on an "AS IS"
%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
%% the License for the specific language governing rights and limitations
%% under the License.
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%% %CopyrightEnd%
%%
%%
-module(exception_SUITE).
-export([all/1,init_per_testcase/2,fin_per_testcase/2,init_all/1,finish_all/1,
badmatch/1,pending_errors/1,nil_arith/1]).
-export([bad_guy/2]).
-include("test_server.hrl").
all(suite) ->
[{conf,init_all,cases(),finish_all}].
cases() ->
[badmatch, pending_errors, nil_arith].
-define(try_match(E),
catch ?MODULE:bar(),
{'EXIT', {{badmatch, nomatch}, _}} = (catch E = nomatch)).
init_per_testcase(_Case, Config) ->
test_lib:interpret(?MODULE),
Dog = test_server:timetrap(?t:minutes(1)),
[{watchdog,Dog}|Config].
fin_per_testcase(_Case, Config) ->
Dog = ?config(watchdog, Config),
?t:timetrap_cancel(Dog),
ok.
init_all(Config) when is_list(Config) ->
?line test_lib:interpret(?MODULE),
?line true = lists:member(?MODULE, int:interpreted()),
ok.
finish_all(Config) when is_list(Config) ->
ok.
badmatch(doc) -> "Test that deliberately bad matches are reported correctly.";
badmatch(suite) -> [];
badmatch(Config) when list(Config) ->
?line ?try_match(a),
?line ?try_match(42),
?line ?try_match({a, b, c}),
?line ?try_match([]),
?line ?try_match(1.0),
ok.
pending_errors(doc) ->
["Test various exceptions, in the presence of a previous error suppressed ",
"in a guard."];
pending_errors(suite) -> [];
pending_errors(Config) when list(Config) ->
?line pending(e_badmatch, {badmatch, b}),
?line pending(x, function_clause),
?line pending(e_case, {case_clause, xxx}),
?line pending(e_if, if_clause),
?line pending(e_badarith, badarith),
?line pending(e_undef, undef),
?line pending(e_timeoutval, timeout_value),
?line pending(e_badarg, badarg),
?line pending(e_badarg_spawn, badarg),
ok.
bad_guy(pe_badarith, Other) when Other+1 == 0 -> % badarith (suppressed)
ok;
bad_guy(pe_badarg, Other) when length(Other) > 0 -> % badarg (suppressed)
ok;
bad_guy(_, e_case) ->
case xxx of
ok -> ok
end; % case_clause
bad_guy(_, e_if) ->
if
a == b -> ok
end; % if_clause
bad_guy(_, e_badarith) ->
1+b; % badarith
bad_guy(_, e_undef) ->
non_existing_module:foo(); % undef
bad_guy(_, e_timeoutval) ->
receive
after arne -> % timeout_value
ok
end;
bad_guy(_, e_badarg) ->
node(xxx); % badarg
bad_guy(_, e_badarg_spawn) ->
spawn({}, {}, {}); % badarg
bad_guy(_, e_badmatch) ->
a = b. % badmatch
pending(Arg, Expected) ->
pending(pe_badarith, Arg, Expected),
pending(pe_badarg, Arg, Expected).
pending(First, Second, Expected) ->
pending_catched(First, Second, Expected),
pending_exit_message([First, Second], Expected).
pending_catched(First, Second, Expected) ->
ok = io:format("Catching bad_guy(~p, ~p)", [First, Second]),
case catch bad_guy(First, Second) of
{'EXIT', Reason} ->
pending(Reason, bad_guy, [First, Second], Expected);
Other ->
test_server:fail({not_exit, Other})
end.
pending_exit_message(Args, Expected) ->
ok = io:format("Trapping EXITs from spawn_link(~p, ~p, ~p)",
[?MODULE, bad_guy, Args]),
process_flag(trap_exit, true),
Pid = spawn_link(?MODULE, bad_guy, Args),
receive
{'EXIT', Pid, Reason} ->
pending(Reason, bad_guy, Args, Expected);
Other ->
test_server:fail({unexpected_message, Other})
after 10000 ->
test_server:fail(timeout)
end,
process_flag(trap_exit, false).
pending({badarg,[{erlang,Bif,BifArgs},{?MODULE,Func,Arity}|_]}, Func, Args, _Code)
when atom(Bif), list(BifArgs), length(Args) == Arity -> %Threaded code.
ok;
pending({badarg,[{erlang,Bif,BifArgs},{?MODULE,Func,Args}|_]}, Func, Args, _Code)
when atom(Bif), list(BifArgs) -> %From interpreted code.
ok;
pending({undef,[{non_existing_module,foo,[]}|_]}, _, _, _) ->
ok;
pending({function_clause,[{?MODULE,Func,Args}|_]}, Func, Args, _Code) ->
ok;
pending({Code,[{?MODULE,Func,Arity}|_]}, Func, Args, Code) when length(Args) == Arity -> %Threaded code
ok;
pending({Code,[{?MODULE,Func,Args}|_]}, Func, Args, Code) -> %From interpreted code.
ok;
pending(Reason, Func, Args, Code) ->
test_server:fail({bad_exit_reason,Reason,{Func,Args,Code}}).
nil_arith(doc) ->
"Test that doing arithmetics on [] gives a badarith EXIT and not a crash.";
nil_arith(suite) ->
[];
nil_arith(Config) when list(Config) ->
?line ba_plus_minus_times([], []),
?line ba_plus_minus_times([], 0),
?line ba_plus_minus_times([], 42),
?line ba_plus_minus_times([], 38724978123478923784),
?line ba_plus_minus_times([], 38.72),
?line ba_plus_minus_times(0, []),
?line ba_plus_minus_times(334, []),
?line ba_plus_minus_times(387249797813478923784, []),
?line ba_plus_minus_times(344.22, []),
?line ba_div_rem([], []),
?line ba_div_rem([], 0),
?line ba_div_rem([], 1),
?line ba_div_rem([], 42),
?line ba_div_rem([], 38724978123478923784),
?line ba_div_rem(344.22, []),
?line ba_div_rem(0, []),
?line ba_div_rem(1, []),
?line ba_div_rem(334, []),
?line ba_div_rem(387249797813478923784, []),
?line ba_div_rem(344.22, []),
?line ba_div_rem(344.22, 0.0),
?line ba_div_rem(1, 0.0),
?line ba_div_rem(392873498733971, 0.0),
?line ba_bop([], []),
?line ba_bop(0, []),
?line ba_bop(42, []),
?line ba_bop(-42342742987343, []),
?line ba_bop(238.342, []),
?line ba_bop([], 0),
?line ba_bop([], -243),
?line ba_bop([], 243),
?line ba_bop([], 2438724982478933),
?line ba_bop([], 3987.37),
?line ba_bnot([]),
?line ba_bnot(23.33),
?line ba_shift([], []),
?line ba_shift([], 0),
?line ba_shift([], 4),
?line ba_shift([], -4),
?line ba_shift([], 2343333333333),
?line ba_shift([], -333333333),
?line ba_shift([], 234.00),
?line ba_shift(23, []),
?line ba_shift(0, []),
?line ba_shift(-3433443433433323, []),
?line ba_shift(433443433433323, []),
?line ba_shift(343.93, []),
ok.
ba_plus_minus_times(A, B) ->
io:format("~p + ~p", [A, B]),
{'EXIT', {badarith, _}} = (catch A + B),
io:format("~p - ~p", [A, B]),
{'EXIT', {badarith, _}} = (catch A - B),
io:format("~p * ~p", [A, B]),
{'EXIT', {badarith, _}} = (catch A * B).
ba_div_rem(A, B) ->
io:format("~p / ~p", [A, B]),
{'EXIT', {badarith, _}} = (catch A / B),
io:format("~p div ~p", [A, B]),
{'EXIT', {badarith, _}} = (catch A div B),
io:format("~p rem ~p", [A, B]),
{'EXIT', {badarith, _}} = (catch A rem B).
ba_bop(A, B) ->
io:format("~p band ~p", [A, B]),
{'EXIT', {badarith, _}} = (catch A band B),
io:format("~p bor ~p", [A, B]),
{'EXIT', {badarith, _}} = (catch A bor B),
io:format("~p bxor ~p", [A, B]),
{'EXIT', {badarith, _}} = (catch A bxor B).
ba_shift(A, B) ->
io:format("~p bsl ~p", [A, B]),
{'EXIT', {badarith, _}} = (catch A bsl B),
io:format("~p bsr ~p", [A, B]),
{'EXIT', {badarith, _}} = (catch A bsr B).
ba_bnot(A) ->
io:format("bnot ~p", [A]),
{'EXIT', {badarith, _}} = (catch bnot A).
